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Looking to upgrade to a king-size mattress? Check out our picks for best king-size beds to get your search started.

It’s good to be king.

If you’re planning to go big or go home with your new mattress, you’ll want to make sure you’ve snagged the very best.

We’ve rounded up some of the best king-size mattress options available across different price points and sleep needs. We also have some savvy shopping tips for you.

Crowning the best kings took some legwork. Here’s how we did it:

  • We reviewed company policies: Specifically, we dove into warranties, in-home trials, shipping, and return policies.
  • We looked at company reputation and transparency: Each brand we feature has a positive reputation, transparent business practices, good customer reviews, and meets federal flammability requirements.
  • We prioritized: We chose mattresses with good materials certifications and included brands that sell a range of king sizes.

What is off-gassing?

Off-gassing occurs when the chemicals used in manufacturing mattresses release once unboxed. The smell can be off-putting to some.

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You’ll find a few different types of king-size mattresses on the market, including:

  • Memory foam mattresses: This popular option is loved for its body-hugging ability. However, some people dislike the feeling of sinking into memory foam.
  • Latex mattresses: While similar to memory foam mattresses, latex mattresses are known for improved breathability and bounce-back factor. They can also be more durable and cooler than regular memory foam. Latex, of course, is not the pick for people with a latex allergy.
  • Innerspring mattresses: These are more traditional mattresses that use a steel coil support system. They’re long lasting and affordable, but they usually only have one thin layer of padding.
  • Hybrid mattresses: These offer the best of both worlds: a coil spring base topped with layers of latex or foam. This blend gives comfort, durability, and support. Plus, hybrid mattresses work well for many sleeping styles.

There are also several sizes of king-size mattresses:

  • regular king (typically 76 inches wide by 80 inches long)
  • California king (typically 72 inches wide by 84 inches long, which is great for sleepers over 6 feet tall)
  • split king (each side is adjustable to raise and lower)
  • Alaskan king (typically the largest mattress available, at approximately 108 inches wide by 108 inches long)

Here’s a quick chart to help you compare your king-size options.

Price of king mattressMattress typeLength of trialWarrantyWho it’s best for
Saatva Solaire Mattress$4,395airbed365 nightslifetimesleepers with back pain or anyone who wants an adjustable mattress
Helix Dawn Mattress$1,748hybrid100 nights10 yearsstomach and side sleepers
Nectar Premier Mattress$1,199memory foam365 nightslifetime (with exceptions)stomach, back, and side sleepers
Tempur-Pedic TEMPUR-Cloud Mattress$2,399foam90 nights10 yearssleepers who like the body-hugging feel of memory foam
Tuft & Needle Original Mattress$1,395foam100 nights10 yearsside sleepers and those who like a firmer mattress
Puffy Lux Mattress$3,049hybrid101 nightslifetimeside sleepers and anyone who needs advanced pressure relief
WinkBed Plus Mattress$2,199hybrid120 nightslifetimesleepers with more weight
Dreamfoam Arctic Dreams Hybrid Mattress$999hybrid120 nights10 yearsbudget shoppers
Plank Firm Mattress by Brooklyn Bedding$1532foam120 nights10 yearssleepers who prefer a very firm mattress
Avocado Green Mattress$2,599hybrid365 nights25 yearsside and combination sleepers or those who want an organic mattress
Nolah Natural 11-inch Mattress$2,499latex hybrid120 nightslifetimeside and back sleepers or people with allergies or asthma
Avocado Eco Organic Mattress$1,599hybrid100 nights10 yearsback and stomach sleepers or those who want an organic mattress
Molecule Hybrid Mattress$2,299hybrid365 nightslifetimeside and back sleepers or hot sleepers

There are plenty of sleepers best suited to a king-size mattress:


  • Roomy: King-size mattresses provide plenty of space for partners to get comfy, roll over, and stretch out — not to mention, extra space for kiddos and pets to join.
  • Comfier for sleepers with more weight: These mattresses are usually supportive, long, and wide, accommodating people of all body types and sizes.
  • Options: You can find memory foam, latex, innerspring, and hybrid king-size mattresses. There are also extended king sizes available, including California king, split king, and Alaskan king.


  • Higher price point: King-size mattresses, bedding, and other accessories are often pricier than the more common queen-size mattresses.
  • Takes up more space: King-size mattresses take up more space in the bedroom. A larger mattress may also take more effort to move.
  • May feel too big for some sleepers: Petite sleepers may feel like the bed has more space than needed.
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When shopping for a king-size mattress, do your research and consider your needs, lifestyle, and sleeping style (side, back, stomach, etc.). Many mattresses will say what sleeping position they’re intended for, but in general, opt for something firmer if you’re a back or stomach sleeper, and something softer if you’re a side sleeper.

Take a look at the mattress’s materials, too. You may want to consider those that have certifications like GOTS or GOLS. Think about whether you find foam comfy or if you prefer the extra support of springs, too.

If you can, test out mattresses in person. A test drive is often the fastest way to know if a mattress is right for you. However, if you can’t try a mattress out ahead of time, buy from a company that offers an in-home trial period and a good return policy. Also, take a look at the warranty to see what’s covered.

Is a king-size mattress the biggest mattress?

Nope. There’s a range of king-size mattresses available beyond just a standard king. Alaskan king is usually the largest king-size mattress available, measuring approximately 108 inches wide by 108 inches long.

What’s the difference between a king-size mattress and a California king?

A standard king-size mattress is usually 76 inches wide by 80 inches long, while a California king is typically 72 inches wide by 84 inches long. Thanks to its extra length, a California king tends to be the best choice for sleepers over 6 feet tall.

What’s a split king mattress?

Think of this bed as two twin XL mattresses pushed together. This type of king-size mattress is usually designed to work with an adjustable base and to cater to each sleeper’s needs. One sleeper can sit up, while the other rests in a horizontal position.

These mattresses are good for reducing motion transfer, as each sleeper has their own mattress. This means, you likely won’t be able to feel your partner moving around. The downside is that these mattresses tend to cost more and require specific sheets.

How can you choose which king-size mattress to buy?

First, consider who the mattress is accommodating. A tall sleeper? A sleeper with more weight? Multiple sleepers, including children and pets? Then, consider how much space you have. Can you reasonably move the mattress through the halls and doorways to get to your bed frame?

Once you know the answers to these questions, check out the range of king-size mattresses available to find the best dimensions for you and your space.

There are many king-size mattress options, sizes, and price ranges available.

These 13 options checked our boxes for reputation and quality but be sure to do your research before committing to a brand. Try to test the mattress out in person if possible or buy from a company that offers an in-home trial.

Breanna Mona is a writer based in Cleveland, Ohio. She holds a master’s degree in media and journalism and writes about health, lifestyle, and entertainment.